Can someone check my answers ? ?

which of these is true about a bar magnet?

its north pole tends to point south.

its poles can be separated into two isolated poles.

its poles attract or repel because of their net electric charge.

> it attracts unmagnetized iron objects by making them magnetically polarized.

What properties of a moving object are used in determining the object's energy of motion

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?

What is the technical name for super glue type adhesives?